TV s these days are moving to 4K resolution and even 8K is being demonstrated.

Ultra HD. 4K UHD (2160p) a resolution of 3840 pixels × 2160 lines (8.3 megapixels, aspect ratio 16:9) and is one of the two resolutions of ultra high definition television targeted towards consumer television, the other being 8K UHD which is 7680 pixels × 4320 lines (33.2 megapixels).

There are many projectors capable of 4K resolution at "reasonable" prices.

I would be very surprised if a projector capable of only 1400 x 1050 would be a match for those capable of 4K.